Re: psql tab completion for DO blocks

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От David Fetter
Тема Re: psql tab completion for DO blocks
Дата
Msg-id 20100211202741.GC11972@fetter.org
обсуждение исходный текст
Ответ на Re: psql tab completion for DO blocks  (Takahiro Itagaki <itagaki.takahiro@oss.ntt.co.jp>)
Ответы Re: psql tab completion for DO blocks
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On Wed, Feb 10, 2010 at 11:00:00AM +0900, Takahiro Itagaki wrote:
> Bruce Momjian <bruce@momjian.us> wrote:
> 
> > Where are we on this patch?  We should at least implement the completion
> > for 'LANGUAGE' in 'DO', and use the existing pg_language query for
> > completion.  I am attaching a patch that does exactly this.
> 
> I don't think we need the patch except adding DO to the top-level sql_commands.
> 
> Syntax of DO command is:
>     DO code [ LANGUAGE lang_name ]

That's not the only syntax.
   DO [LANGUAGE lang_name] code

also works, e.g.:

CREATE LANGUAGE plperl;
CREATE TABLE foo(id SERIAL PRIMARY KEY, t TEXT);
DO LANGUAGE plperl $$spi_exec_query(q[INSERT INTO foo(t) VALUES('aaa')]);$$;
SELECT * FROM foo;

The DO LANGUAGE lang_name code syntax is much clearer, as far as I'm
concerned, than putting the code block before the language anyhow. :)

Cheers,
David.
-- 
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